Читать книгу Clinical Pancreatology for Practising Gastroenterologists and Surgeons - Группа авторов - Страница 99

Pseudocyst occurs after four weeks from unresolved APFC, as the fluid becomes more organized. On MRI, this appears as an organized T2‐weighted hyperintense fluid collection, and may demonstrate a thin surrounding rim on post‐contrast images. It should be noted that the presence of even a small area of internal fat or soft‐tissue attenuation within the fluid collection should not be seen with a pseudocyst; the presence of these changes the designation of the fluid collection to walled‐off necrosis. Pseudocysts may connect to the pancreatic ductal system, which can be seen with MRCP images. Secretin‐enhanced MRCP significantly improves visualization of such connections.